Boat



J 1964 A. COHEN ETAL BOAT 2 Sheets-Sheet 1 Filed March 30, 1962 [Ni [M7065 ABE COH E N VICTOR TCHETCHET A TTOEJVFV 1964 A. COHEN ETAL BOAT 2 Sheets-Sheet 2 Filed March 30, 1962 INVENTOHJ ABE COHEN VICTOR TCHETCHET United States Patent 3,117,547 BOAT Abe Cohen, 143 Baker Hill Road, Great Neck, N.Y., and Victor Tchetehet, 39 Stepping Stone Lane, Kings loint, NY.

Filed Mar. 30, 1962, Ser. No. 133,959 1 Claim. (Cl. 1l466.5)

This invention relates to the art of boat construction and particularly concerns an improved cabin cruiser type of power boat.

According to the invention there is provided a boat having a plurality of sponsons extending the full length of opposite sides of the hull, the sponsons being disposed partially or wholly below the waterline to increase the speed of the boat, by the added amount of planing surface and by the lift created by the angle of attack of said sponsons which, in addition, add greatly to the stability of the craft. The sponsons can be manufactured separately or in a variety of materials and in different sizes to fit all other boats. The bottom of the boat is provided with a tunnel in which to house the propulsion means. The remainder of the bottom of the boat is corrugated to increase the structural strength of the boat. One or more plates are hinged horizontally to the transom of the boat for correcting longitudinal trim and for decreasing the squatting. The bow of the boat is rounded to increase seaworthiness and provide more deck space for anchoring operations. A transparent dome-like compartment provides the helmsman with an unobstructed View in all directions. Steering mechanism and other navigational instruments are housed in said compartment up forward of the boat thereby providing better visibility. A sliding canopy over the cockpit is movable forward to provide more air space in fair weather. Steps and handrails are provided on the transom to facilitate persons coming aboard and descending from the boat. Running lights are provided on sides of the cabin and top of the mast. Lights on the stern wings are provided for night operations.

It is a principal object of the invention to provide an improved boat construction in which a number of sponsons extend laterally on each side of the hull from how to stern.

A further object of the invention is to provide a boat of the type described with a rounded bow, helmsmans compartment forward, sliding canopy over the cockpit, lights on stern wings, plates attached to the transom correcting the trim of the boat and acting as brakes, steps on the transom, tunneied bottom for housing propulsion means, and longitudinally corrugated bottom.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claim in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

FIG. 1 is a side elevational view of a boat embodying the invention.

FIG. 2 is a top plan view of the boat.

FIG. 3 is a front elevational view of the boat.

FIG. 4 is a rear elevational view of the boat.

FIG. 5 is a diagrammatic layout of some of the boats facilities and appointments.

Referring to the drawings, there is shown a boat having a hull 12. The bow 14 of the boat is wide and rounded with highly flared freeboards on opposite sides to increase seaworthiness of the boat and to provide ample space on forward deck 16 for passengers and for anchoring operations. On the forward deck 16 is a hatch 18 providing access to the quarters below. Just to the rear Patented Jan. 1 1964 ice of the hatch 18 is a seat 20 for convenience of passengers. A guard rail 19 extends around the forward deck.

The cabin 22 is elongated extending from a point closely spaced from the bow to the rear deck. The cabin is provided with a series of windows 24 on both sides 25. The windows have slidable sections 26. At the front of the cabin are windows 27 located forward of the helmsmans compartment 28. The helmsmans compartment is located at the forward end of the cabin and has a steering Wheel 33', a seat 30 which elevates the helmsman (indicated by H in FIG. 1) above the roof 32 of the cabin. A plastic, transparent dome 34 is mounted on the roof at the open top of the helmsmans compartment at the forward end of the cabin. This dome can be tilted forwardly as indicated by dotted lines in FIG. 1 or it may be arranged to tilt to one side or to the rear on the roof of the cabin. A window 37 is slidably mounted on the front portion of the dome. On the roof 32 is mounted a mast 33 carrying running lights 35. Further running lights 36 are mounted at opposite sides of the forward end of the cabin.

A forward-sliding canopy 38 is mounted at the rear of the boat over the cockpit 4t). In extended position said canopy is held by supporting retractable rods or tubing 42. Handrails 56 on the side flanges of the canopy facilitate manual pulling of the canopy forwardly to the dotted line position P indicated in FIG. 1. Rods 42 can be folded when the canopy is moved forwardly.

A pair of lights 52 are mounted on the side decks 54 of the boat at their stern ends. Extending from the curved transom 4-4 are two sets of steps 55 55 provided with handrails 57 to facilitate boarding of the boat and descent therefrom.

At the stern end of the boat near the bottom are two plates 5%, 58 secured by horizontal hinges 61 to pivot on a horizontal axis, which plates can be operated manually or mechanically from the helmsmans compartment by means of rods 62.

The bottom 65 of the boat is formed with longitudinal corrugations 66 extending the full length of the bottom. These corrugations strengthen the bottom structurally. The center stern portion of the bottom is formed with a tunnel or groove 68, in which to house the propeller 69 of the motor operated driving mechanism.

At opposite sides of the hull are two pairs of laterally extending sponsons 72. These sponsons extend the full length of the boat from bow to stern and around the bow. The upper sponsons 72 extend above the waterline WL at the bow and below the waterline at the stern. The lower sponsons '72. extend wholly below the waterline. The sponsons conform to the shape of the hull, dropping at the stern, working their way upwardly and tapering to zero at the knife of the bow and then conforming to the curvature of the knife of the bow; that is, the sponsons flow into the knife of the bow. By reasons of this con struction of the sponsons, water builds up a pressure at the knife of the bow tending to lift up the hull leaving only approximately 10% of the hull in the water. The sponsons thus act as stabilizers and as lifting agents at the same time, taking the roll out of the boat, decreasing the resistance to the propulsion of the boat so that more speed and greater safety are afforded. Said sponsons can be hollow, or of solid material, or filled with Styrofoam or other floating materials. Said sponsons additionally provide planing surfaces which impart considerable amount of lift to the boat, raising it upwardly and decreasing the amount of wetted surface. This cuts down on water friction or drag and increases the speed of the boat, for any particular power expenditure.

FIG. 5 shows diagrammatically a layout of the interior of the boat. The helmsmans compartment 28 is just to a the rear of the seat 20. A galley 75 and head 76 are provided in the cabin area 77. Two pairs of bunks 78, 78 are provided at opposite sides of the cabin. Lockers 79, 79 are located to the rear of the bunks. A seat 80 extends transversely of the cockpit 40. A hatch 82 providing access to the motor of the boat, preferably a jet engine, is closed by door 84 and is provided in the rear deck 41. Doors 40' separate the cabin area 77 from the open cockpit 40.

The entire arrangement of the boat is such as to increase seaworthiness and ease of handling. Its roof is low with respect to the waterline and the boat has a low center of gravity. These features result in increased stability While cruising or riding at anchor.

While we have illustrated and described the preferred embodiment of our invention, it is to be understood that we do not limit ourselves to the precise construction herein disclosed and that various changes and modifications may be made within the scope of the invention as defined in the appended claim.

Having thus described our invention, what we claim as new, and desire to secure by United States Letters Patent is:

A motor powered boat, comprising a hull having a wide rounded bow, with highly flared freeboards on opposite sides, a transom, a plurality of sponsons secured to opposite sides, respectively, of the hull, each sponson extending from the bow to the stern of the hull, some of the sponsons extending upwardly at the bow so as to project partly above the waterline of the boat and other sponsons being wholly submerged below the surface of the water when the boat is at stationary position, said hull having a corrugated bottom, with a central tunnel adapted to house the means of propulsion, the corrugations extending the full length of the bottom, a pair of plates hinged on a horizontal axis to the transom, parallel to the bottom, said plates being pivotable to trim the boat longitudinally and to serve as braking means, said hull having a cabin extending from the front deck to the stern, said cabin having a hinged transparent dome for a helrnsmans compartment at the forward end of the cabin, a roof on said compartment, said roof having an opening, said dome having a slidable window in the forward portion thereof.

References Cited in the file of this patent UNITED STATES PATENTS 1,007,583 Loetzer Oct. 31, 1911 1,050,517 Chase Ian. 14, 1913 1,075,726 Prosser Oct. 14, 1913 1,189,227 Baker July 4, 1916 2,288,490 Scott-Paine June 30, 1942 2,947,277 Stevens Aug. 2, 1960 3,038,431 Bajulaz June 12, 1962 FOREIGN PATENTS 504,085 France Apr. 2, 1920 665,771 France May 13, 1929 911,574 France Mar. 8, 1946 OTHER REFERENCES Yachting, April 1958, volume 103, No. 4 (page 9 relied on). 

